Django形成多种选择

Question

I am a newbie in Django and I would really appreciate it if you could offer me some guidance. I am trying to create a form that allows a user to tick one or more options. I understood that I must use MultipleChoiceField field with a CheckboxSelectMultiple widget but the Django documentation doesn't offer an example on this topic. I would be grateful if you could offer me an example and explain how do I handle the results. For example if I have a form with the options abcd, and the user ticks c and d. Also how do I specify the choices(I don't want to use a db, a list of strings is what I have in mind)? Thanks a lot

Answer 1

forms.py

class SomeForm(forms.Form):
    CHOICES = (('a','a'),
               ('b','b'),
               ('c','c'),
               ('d','d'),)
    picked = forms.MultipleChoiceField(choices=CHOICES, widget=forms.CheckboxSelectMultiple())

views.py

def some_view(request):
    if request.method == 'POST':
        form = SomeForm(request.POST)
        if form.is_valid():
            picked = form.cleaned_data.get('picked')
            # do something with your results
    else:
        form = SomeForm

    return render_to_response('some_template.html', {'form':form },
        context_instance=RequestContext(request))

some_template.html

<form method='post'>
    {{ form.as_p }}
    <input type='submit' value='submit'>
</form>

results:

explanation:

choices:

The first element in each tuple is the actual value to be stored. The second element is the human-readable name for the option.

getting selected boxes:

form.cleaned_data.get('picked') will result in a list of the 'actual values'. For example, if I replaced the # do something with your results with print picked you see:

[u'a', u'c']

in your console

Answer 2

hope this helps :D

from django import forms


class Test(forms.Form):
    OPTIONS = (
        ("a", "A"),
        ("b", "B"),
        )
    name = forms.MultipleChoiceField(widget=forms.CheckboxSelectMultiple,
                                         choices=OPTIONS)

Answer 3

you can check this https://pypi.python.org/pypi/django-multiselectfield/

from multiselectfield import MultiSelectField

# ...

MY_CHOICES = (('item_key1', 'Item title 1.1'),
          ('item_key2', 'Item title 1.2'),
          ('item_key3', 'Item title 1.3'),
          ('item_key4', 'Item title 1.4'),
          ('item_key5', 'Item title 1.5'))

MY_CHOICES2 = ((1, 'Item title 2.1'),
           (2, 'Item title 2.2'),
           (3, 'Item title 2.3'),
           (4, 'Item title 2.4'),
           (5, 'Item title 2.5'))

class MyModel(models.Model):

    # .....

    my_field = MultiSelectField(choices=MY_CHOICES)
    my_field2 = MultiSelectField(choices=MY_CHOICES2,
                             max_choices=3,
                             max_length=3)